Originally posted by: DrPizza
Originally posted by: torpid
Originally posted by: DrPizza
They do NOT cause cancer. You think that people with 1000's or 10's of 1000's of dollars invested in animals are going to be happy with a 10% cancer rate? They operate at radio frequencies, and the chips that are placed under the animal's skin are passive - they don't have their own power source. There are no carcinogenic materials in contact with the animal's flesh either. You can get some more info here:
http://usanimalid.com/microchip.htm
Hopefully I'll be purchasing my own scanner this year & we will begin chipping all our animals.
While I agree that they don't cause cancer, I'm not sure about the reasoning above. Rabies vaccines are known to have a higher incidence of cancer at the injection site that one might expect and would seem to disprove the reasoning above if you substitute rabies vaccine with microchip. Some newer vaccines don't seem to have this problem, but for a while there it was definitely the case, and that's why they inject in a leg now instead of the upper torso as they did in the past.
This, I didn't know. As we often have bats in the barn (and bats, for the most part, are quite beneficial), I've been considering vaccinating the herd against rabies, just to be on the safe side. I'll have to look into what the relative risks actually are. Plus, I have to look at whether it's legal or not to administer the rabies vaccination to my own animals. I know I can't have it shipped into NY, and the vaccination isn't recognized by the state if done by other than a veterinarian. But, most of my animals aren't required to be vaccinated. It would just be for peace of mind.
Apparently it's also true of some other vaccines. http://www.avma.org/vafstf/
That link doesn't mention some of the newer vaccine types (that I saw) but I've seen some articles indicating that the adjuvants are the primary reason for the sarcomas, and vaccines are now being made without them in some cases.
My vet is part of a large conglomerate which found that the issue seems to occur more often when administering the final serum in a large bottle. Once they switched to smaller bottles, incidence went down. Not necessarily scientific but worth noting possibly.
